Patents by Inventor Kaori Aoyama

Kaori Aoyama has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 5663777
    Abstract: It is an object of the invention to enhance the brightness of the display screen of the reflection type liquid crystal display device of positive reflection type. A liquid crystal panel of active matrix type is interposed between a first polarizing plate of high degree of polarization and a second polarizing plate of low degree of polarization. A reflector with reflectance of 60% or more with small change in reflectance within visible ray region is disposed to be opposed to the liquid crystal panel via the second polarizing plate. On one substrate member of the liquid crystal panel, MIM elements, signal wirings, and light transmitting pixel electrodes are disposed. On other substrate member, light permeable electrodes integrating scanning wiring and counter electrodes are disposed.
    Type: Grant
    Filed: December 27, 1995
    Date of Patent: September 2, 1997
    Assignee: Sharp Kabushiki Kaisha
    Inventor: Kaori Aoyama
  • Patent number: 5497256
    Abstract: A liquid crystal display includes a liquid crystal cell including a pair of substrates and a liquid crystal filled between the substrates, and a phase plate located adjacent to one of the substrates of the liquid crystal cell and having a retardation value of 400 to 500 nm. The wavelength dependency of the retardation value of the phase plate being substantially uniform.
    Type: Grant
    Filed: September 14, 1994
    Date of Patent: March 5, 1996
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Kaori Aoyama, Toshiyuki Yoshimizu